EP0780093B1 - Quick-release tibial tray handle - Google Patents
Quick-release tibial tray handle Download PDFInfo
- Publication number
- EP0780093B1 EP0780093B1 EP96309384A EP96309384A EP0780093B1 EP 0780093 B1 EP0780093 B1 EP 0780093B1 EP 96309384 A EP96309384 A EP 96309384A EP 96309384 A EP96309384 A EP 96309384A EP 0780093 B1 EP0780093 B1 EP 0780093B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bolt
- handle
- tray trial
- opening
- tibial
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1735—Guides or aligning means for drills, mills, pins or wires for rasps or chisels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
- A61F2/461—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof of knees
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4684—Trial or dummy prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B17/16—Bone cutting, breaking or removal means other than saws, e.g. Osteoclasts; Drills or chisels for bones; Trepans
- A61B17/17—Guides or aligning means for drills, mills, pins or wires
- A61B17/1739—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body
- A61B17/1764—Guides or aligning means for drills, mills, pins or wires specially adapted for particular parts of the body for the knee
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/0046—Surgical instruments, devices or methods, e.g. tourniquets with a releasable handle; with handle and operating part separable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
- A61B2017/00477—Coupling
- A61B2017/00486—Adaptors for coupling parts with incompatible geometries
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B34/00—Computer-aided surgery; Manipulators or robots specially adapted for use in surgery
- A61B34/20—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis
- A61B2034/2068—Surgical navigation systems; Devices for tracking or guiding surgical instruments, e.g. for frameless stereotaxis using pointers, e.g. pointers having reference marks for determining coordinates of body points
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/38—Joints for elbows or knees
- A61F2/389—Tibial components
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/46—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor
- A61F2/4603—Special tools or methods for implanting or extracting artificial joints, accessories, bone grafts or substitutes, or particular adaptations therefor for insertion or extraction of endoprosthetic joints or of accessories thereof
Description
- The present invention relates to a handle for aligning a tibial tray trial used at various times during a knee replacement surgical procedure.
- During knee replacement surgery tibial trials are used to assist a surgeon in preparing the tibial surface for implantation of the tibial portion of the artificial knee. A surgeon uses a tibial tray trial to determine the tibial implant size, to make the appropriate cuts and reams in the bone, and to ensure a proper alignment and tibial component thickness prior to implanting the tibial components.
- Such a procedure typically entails making an initial tibial plateau cut on the proximal tibial portion of the knee; determining a preferred size tray trial (and ultimately tray implants); placing the selected tray trial over the tibial surface; performing a trial reduction to ensure proper tibial component thickness and alignment, removing the tray trial to attach a punch guide; placing a punch guide and tray trial on the resected tibial surface knee; and cutting or reaming the tibial bone through openings in the punch guide and tray trial to prepare it to receive a stem or keel of the tibial implant. During this procedure it is frequently necessary for the surgeon to remove the tray trial and replace the tray trial, as well as to remove the handle holding the tray trial so that the knee alignment and tibial component thickness may be evaluated.
- In the existing art, a tibial alignment handle is attached by way of a screw to the tibial tray trial. A screw type handle can be cumbersome to attach. Screws have a tendency to be weaker and/or break. Furthermore, the threads for attachment in screw type devices may have a tendency to gaul, bind and fail. Such a device is show on Fig.7 and described at the beginning of the detailed description. It shows the features of the preamble of claim 1.
- Accordingly, it is desirable to have a tibial tray trial and an alignment handle system which enables quick and secure attachment or removal of the handle from the tray trial.
- The present invention provides a tibial tray alignment handle as set forth in claim 1 appended hereto. In a preferred embodiment, the connecting member comprises a captive spring-loaded sliding bolt which engages a mating part built into the tray trial. The sliding bolt is retracted by the release button located on the alignment handle so that the button may be engaged by the thumb or the finger of a user to attach or detach the alignment handle from the tray trial. Another feature of the preferred embodiment includes a mechanical lock between the handle and mating component that prevents rotation between the components. The present invention further provides a tibial tray trial alignment handle system as set forth in claim 3 appended hereto.
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- Figure 1 illustrates an exploded perspective view of the top of an alignment handle and tibial tray trial locking system of the present invention;
- Figure 2 illustrates an assembled perspective view of the system of Figure 2 with the tibial tray trial and alignment handle attached;
- Figure 3 illustrates an exploded perspective view from the bottom side of the system illustrated in Figure 1;
- Figure 4 illustrates an exploded perspective view of the top of an alignment handle and tibial tray trial locking system of the present invention;
- Figure 5 illustrates an assembled perspective view of the system of Figure 4 with the tibial tray trial and alignment handle attached;
- Figure 6 illustrates an exploded perspective view from the bottom side of the system illustrated in Figure 4; and
- Figure 7 illustrates a locking mechanism of the prior art.
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- Referring to Figure 7, a screw type device of the prior art is illustrated. The
handle 100 includes a universal 101 and athumb screw 102 located on thedistal end 103 of thealignment handle 100. Thetray trial 105 comprises a threadedportion 107 and ahole 106 for receiving the universal 101. In use, the alignment handle (or tray trial) is held in one hand while a second hand is used to insert the universal 101 into thehole 106 and screw thethumb screw 102 into the threadedportion 107. - Referring now to Figures 1-3, a quick release system of one embodiment of the present invention is illustrated. The system includes an
alignment handle 10 and atibial tray trial 20. - An
alignment handle 10 is illustrated having ahandle end 12 and a connectingend 11. Thealignment handle 10 includes arelease button 15 slidable in a direction from the connecting end to the handle end, i.e., posterior to anterior, and visa versa, and spring-biased in an anterior to posterior direction. Thebutton 15 is coupled to a slidingbolt 14 which is captive, i.e., contained within thealignment handle 10. Thebolt 14 is spring-loaded in a direction from anterior to posterior withspring 39. The connectingend 11 of thealignment handle 10 comprises an opening 16 arranged to received amating portion 22 on thetibial tray trial 20. The connectingend 11 further comprises amechanical lock portion 17 posterior of said opening 16, arranged to coupled and lock with themating portion 22 of thetibial tray trial 20. Thebolt 14 extends to the connectingend 11, through theopening 16 and through ahole 18 in themechanical locking portion 17. When therelease button 15 is retracted in a proximal direction, thebolt 14 is retracted to a position anterior of theopening 16, allowing the opening 16 to receive themating portion 22 of thetrial 20. - The
tibial tray trial 20 comprises aplate portion 21, amating portion 22, arim 23 around the outer circumference of theplate 21, and a punch guide opening 24 formed in the tibialtray trial plate 21. Themating portion 22 includes ahole 25 for receiving thebolt 14 of thealignment handle 10. Theplate 21 includes aslot 29 for receiving themechanical locking portion 17 of thealignment handle 10. - In use, a user controls the attachment and detachment of the
alignment handle 10 using therelease button 15. Therelease button 15 is pulled in an anterior direction which retracts thebolt 14 into thealignment handle 10. Themechanical locking portion 17 fits into theslot 29 of thetrial 20 and themating portion 22 fits within theopening 16 at theproximal end 11 of thealignment handle 10. The user may then release therelease button 15 and the spring bias of thebolt 14 moves thebolt 14 proximally through thehole 25 in themating portion 22 and into thehole 18 in themechanical locking portion 17 at theproximal end 11 of thealignment handle 10. -
Alignment handle 10 further comprisesholes 19 for receiving alignment rods (not shown) used to check alignment of the tibial tray with the femur. - As described previously, tibial surface is cut so that the
tibial tray trial 20 will rest on a flat surface. Then, thetibial tray trial 20 is used as a template to select the appropriate size tibial prosthesis for implantation. Thealignment handle 10 is used to manipulate the tray trial. Various sizes of tray trials are attached and removed from the alignment handle to select a trial closely matching the tibial plateau. At any time during the procedure the surgeon may use thealignment handle 10 to place thetray trial 20 on or remove it from the tibia. The surgeon may do this with one hand leaving the other hand free. - Once the size is selected, the trial is placed to rest on the bone. A tibial trial insert (not shown) is inserted within the
rim 23 oftray trial 20. The insert is used to determine the tibial implant thickness and provide a surface with which a femoral trial, indicative of the implant, will interact. Various trial inserts are tried to select the one of an appropriate thickness. Alignment rods may be inserted into theholes 19 and used to check the alignment of thetray 20 with the femoral portion of the implant. The surgeon may then remove the alignment handle, replace the patella portion and check the alignment and movement of the trials. Once it has been determined that the trial is appropriately sized and fitted and has been appropriately placed on the tibia, thealignment handle 10 and trial insert are removed. The surgeon will also remove the femoral trial and attach a punch guide to the tray trial. In order to prepare the tibia for the tibial implant, a punch or reaming device is then inserted through a punch guide (not shown) which is placed over thepunch guide opening 24. - Referring now to Figures 4-6, an alternative embodiment of the present invention is illustrated. The system comprises and alignment handle 110 and a
tibial tray trial 120. - The alignment handle 110 is illustrated having a
handle end 112 and a connectingend 111. The alignment handle 110 includes arelease button 115 slidable in a direction from the connecting end to the handle end, i.e., posterior to anterior, and visa versa. Thebutton 115 is coupled to a slidingbolt 114 which is captive, i.e., contained within thealignment handle 110. Thebolt 114 is spring-loaded in a direction from anterior to posterior withspring 139. The connectingend 111 of thehandle 110 comprises connectingbolts 136 havingcylindrical heads 137 on the end of thebolts 136. Theheads 137 have a greater circumference than the circumference of thebolts 136. - The
tibial tray trial 120 comprises aplate portion 122, arim 124 around the outer circumference of theplate 122, amating portion 123 of therim 124. - The
mating portion 123 includes ahole 126 for receiving a slidingbolt 114 of thehandle 110 andopenings 128 for receiving connectingbolts 136 of thehandle 110.Openings rim 124 of themating portion 123.Openings 128 each include a first portion on one transverse side of theopening 128 having a first radius and a second portion on the opposite transverse side having a second radius smaller than the first radius. - The
bolt 114 extends from the connectingend 111 when thebutton 115 is extended, and retracts into thehandle end 112 when thebutton 115 is retracted. Thebolts 136 are slid intoopenings 128, the first radii of theopenings 128 being large enough to accommodate the larger circumference ofheads 137 of thebolts 136 which, when, inserted into theopenings 128, extend beyondrim 124. Thehandle 110 is then moved in a direction towards the second portion of theopening 128 into a locked position. The second radii are too small to permit passage of the larger circumference heads 137 but large enough to receive thesmaller circumference bolts 136. - In use, a user controls the attachment and detachment of the
handle 110 to thetray trial 120, using therelease button 115. Therelease button 115 is pulled in an anterior direction which retracts thebolt 114 into thehandle 110. Theheads 137 of thebolts 136 on thedistal end 111 of thehandle 110 are inserted intoopenings 128 and moved to the locked position as described above. Thebolt 114 is aligned with theopening 126 when thehandle 110 is in the second or locked position. Thus, when the user releases the release button 131, thespring 139 causes thebolt 114 to move through thehole 126 in themating portion 123. The lockedbolt 114 prevents side to side movement of thehandle 110 and theheads 137 prevent thebolts 136 from pulling out ofholes 128. - The quick-release and locking mechanism of the second embodiment is used in a manner similar to that described above with respect to the first embodiment.
- Although the present invention is described with respect to particular embodiments, and uses, numerous variations or equivalents are possible with in the scope of the claimed invention.
Claims (6)
- A tibial tray alignment handle (10;110) for use in prosthetic knee implantation surgery, said handle comprising:a body having a connecting end portion (11; 111); anda connecting member (14;114; 17; 136; 137) located at said connecting end portion, said connecting member having a first position in which said connecting member is positioned to couple with a mating portion (22;123) of a tibial tray trial, and a second position in which said connecting member is positioned to release from the mating portion of the tibial tray trial;said connecting member comprises a locking member (17;136,137) having a tab portion extending from said body and arranged to engage in an opening (29;128) in the tibial tray trial (20;120) to prevent tray trial movement away from said body; said connecting member is spring biased towards said first position; anda hand actuable quick-release button (15;115) is located on said body and coupled to said connecting member, said button being movable to move said connecting member from said first position to said second position.
- The handle of claim 1 wherein said connecting member comprises:a sliding bolt (14;114) extendable from said connecting end portion and retractable in a direction towards said body to said second position; anda spring (39;139) biasing said bolt towards said first position in a direction extending from said body.
- A tibial tray trial alignment handle system comprising:a tibial tray trial (20;120) comprising a distal portion for interfacing with a tibial portion of a knee joint, a proximal portion and a rim (23;124) connecting said distal and proximal portions and having an anterior portion on which a mating portion (22; 123) is located; anda tibial tray alignment handle (10;110) according to claim 1 or claim 2.
- The system of claim 3 when appended to claim 2 wherein said mating portion of said tray trial comprises:an opening (25;126) for receiving said bolt.
- The system of claim 4 wherein said locking member comprises:a first surface,
wherein said first and second surfaces are arranged to engage to prevent said handle from moving from said tray trial when said sliding bolt is inserted into said opening for receiving said sliding bolt. - The system of claim 4 wherein said locking member (136,137) comprises:a locking bolt (136) having a first diameter, anda head portion (137) on the end of the locking bolt having a second diameter larger than said first diameter; andan opening (128) for receiving said head and said locking bolt, said opening having a first portion with a first diameter large enough to accommodate said first diameter of said bolt but too small to accommodate the second diameter of said head portion, and said opening having a second portion having a second diameter large enough to accommodate said head portion,
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US576745 | 1995-12-21 | ||
US08/576,745 US5733290A (en) | 1995-12-21 | 1995-12-21 | Quick-release tibial alignment handle |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0780093A1 EP0780093A1 (en) | 1997-06-25 |
EP0780093B1 true EP0780093B1 (en) | 2003-02-26 |
Family
ID=24305816
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96309384A Expired - Lifetime EP0780093B1 (en) | 1995-12-21 | 1996-12-20 | Quick-release tibial tray handle |
Country Status (5)
Country | Link |
---|---|
US (1) | US5733290A (en) |
EP (1) | EP0780093B1 (en) |
JP (1) | JP3987148B2 (en) |
CA (1) | CA2193453C (en) |
DE (1) | DE69626366T2 (en) |
Cited By (2)
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US7081118B2 (en) | 2002-08-22 | 2006-07-25 | Helmut Weber | Medical tool |
US8998911B2 (en) | 2009-05-29 | 2015-04-07 | Smith & Nephew, Inc. | Methods and apparatus for performing knee arthroplasty |
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GB2323037B (en) * | 1997-03-13 | 2001-06-27 | Zimmer Ltd | Evaluating the fit of an orthopaedic implant |
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US6159216A (en) * | 1998-09-09 | 2000-12-12 | Sulzer Orthopedics Inc. | Combination tibial preparation instrumentation |
US6203546B1 (en) * | 1999-07-27 | 2001-03-20 | Macmahon Edward B | Method and apparatus for medial tibial osteotomy |
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- 1996-12-20 DE DE69626366T patent/DE69626366T2/en not_active Expired - Lifetime
- 1996-12-20 EP EP96309384A patent/EP0780093B1/en not_active Expired - Lifetime
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Also Published As
Publication number | Publication date |
---|---|
US5733290A (en) | 1998-03-31 |
DE69626366T2 (en) | 2003-12-11 |
EP0780093A1 (en) | 1997-06-25 |
DE69626366D1 (en) | 2003-04-03 |
JP3987148B2 (en) | 2007-10-03 |
CA2193453C (en) | 2005-08-30 |
CA2193453A1 (en) | 1997-06-22 |
JPH09289998A (en) | 1997-11-11 |
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